Subaru 2002 IMPREZA Service Manual page 805

FRONT CATALYTIC CONVERTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
9) Connect the battery ground cable to battery.
G6M0095
C: INSPECTION
1) Make sure there are no exhaust leaks from con-
nections and welds.
2) Make sure there are no holes or rusting.
EC(w/oOBD)-5